Yah, well, there are lots of egregious grammatical errors in these forums. There is a difference between you're and your, but it is being lost by mis-usage/mis-pronunciation. The adverb has died ('don't forget the 'ly' my junior high english teacher used to say). But, we don't speak middle engish because the language adapts to usage and invention despite how disgusting it may be to 'grammar nazis'.

I frequently am asked if I am going to 'bonsai it [that tree]'. What the hell, it is descriptive of the process that it is going to be reduced in size and put into a small pot (maybe even made pretty). One word 'bonsai' as a verb saves a lot of jawing. Get over it. Life and language evolves. Tweet that truthiness.

I suppose that in Japanese usage bonsai is a noun but since the word has been adopted into the English language its nature will be determined by popular usage and that seems to be trending toward its usage as a noun and a verb.

Usage of a word adopted into English from another language does not necessarily have to correspond exactly with its usage in the original language.